"""run.needs

A run recorded the worker *labels* its nodes asked for, which answered whether
anything was attached to run them but nothing about whether that machine was
big enough. The size goes beside the labels, so a queued run can tell waiting
for a machine from having nowhere to run at all.

Revision ID: b3f1a7c50d92
Revises: e5b8c2f4a913
Create Date: 2026-08-27

"""

import sqlalchemy as sa
from alembic import op

# revision identifiers, used by Alembic.
revision = "b3f1a7c50d92"
down_revision = "e5b8c2f4a913"
branch_labels = None
depends_on = None


def upgrade():
    # Nullable: a run submitted before this declared nothing, and null is that
    # rather than a run that needs nothing in particular.
    op.add_column("run", sa.Column("needs", sa.JSON(), nullable=True))


def downgrade():
    op.drop_column("run", "needs")